From patchwork Fri Mar 11 23:49:35 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leo Li X-Patchwork-Id: 12778660 X-Patchwork-Delegate: lorenzo.pieralisi@arm.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 48DC2C43219 for ; Fri, 11 Mar 2022 23:56:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229458AbiCKX5K (ORCPT ); Fri, 11 Mar 2022 18:57:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52740 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229702AbiCKX5K (ORCPT ); Fri, 11 Mar 2022 18:57:10 -0500 Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0FCD110857A; Fri, 11 Mar 2022 15:56:04 -0800 (PST) Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 0B4702014DE; Sat, 12 Mar 2022 00:49:45 +0100 (CET) Received: from smtp.na-rdc02.nxp.com (usphx01srsp001v.us-phx01.nxp.com [134.27.49.11]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id C504F201315; Sat, 12 Mar 2022 00:49:44 +0100 (CET) Received: from right.am.freescale.net (right.am.freescale.net [10.81.116.142]) by usphx01srsp001v.us-phx01.nxp.com (Postfix) with ESMTP id A58DA4028F; Fri, 11 Mar 2022 16:49:43 -0700 (MST) From: Li Yang To: Bjorn Helgaas Cc: Hou Zhiqiang , Rob Herring , linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 1/4] dt-bindings: pci: layerscape-pci: Add a optional property big-endian Date: Fri, 11 Mar 2022 17:49:35 -0600 Message-Id: <20220311234938.8706-2-leoyang.li@nxp.com> X-Mailer: git-send-email 2.25.1.377.g2d2118b In-Reply-To: <20220311234938.8706-1-leoyang.li@nxp.com> References: <20220311234938.8706-1-leoyang.li@nxp.com> MIME-Version: 1.0 X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Hou Zhiqiang This property is to indicate the endianness when accessing the PEX_LUT and PF register block, so if these registers are implemented in big-endian, specify this property. Signed-off-by: Hou Zhiqiang Acked-by: Rob Herring --- Documentation/devicetree/bindings/pci/layerscape-pci.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt b/Documentation/devicetree/bindings/pci/layerscape-pci.txt index f36efa73a470..215d2ee65c83 100644 --- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt +++ b/Documentation/devicetree/bindings/pci/layerscape-pci.txt @@ -40,6 +40,10 @@ Required properties: of the data transferred from/to the IP block. This can avoid the software cache flush/invalid actions, and improve the performance significantly. +Optional properties: +- big-endian: If the PEX_LUT and PF register block is in big-endian, specify + this property. + Example: pcie@3400000 {